如何在sbt中執行grep

Question

我正在使用sbt來構建我的Scala項目，我正在尋找一種方法來按子字符串篩選任何命令（如compile）的輸出。特別是，我想結合sbt命令使用grep。例如> compile | grep MyFile.scala，應該只打印提到MyFile.scala的行。

有沒有辦法做到這一點？

$ sbt --version 
sbt launcher version 0.13.5 

Answer 1

我不知道從sbt控制檯內部執行它，但從你的外殼怎麼樣？

$ sbt "tasks" | grep 'clean' 

clean Deletes files produced by the build, such as generated sources, compiled classes, and task caches. 

或爲子你提到：

$ sbt "tasks" | grep 'class' 
    clean Deletes files produced by the build, such as generated sources, compiled classes, and task caches. 

    console Starts the Scala interpreter with the project classes on the classpath. 

    consoleProject Starts the Scala interpreter with the sbt and the build definition on the classpath and useful imports. 

    consoleQuick Starts the Scala interpreter with the project dependencies on the classpath. 

    run Runs a main class, passing along arguments provided on the command line. 

    runMain Runs the main class selected by the first argument, passing the remaining arguments to the main method. 

Answer 2

到grep SBT的交互模式（SBT 0.13.11測試）輸出的最好方法是使用last-grep。

這將重新打印最後一個命令的輸出，它將採用不同的類似grep的參數。